Clutch Abuse Protection
A vehicle equipped with a Detroit transmission does not have a clutch pedal, but still has a clutch that is operated automatically and can be damaged by abusive driver actions. To protect the clutch, the vehicle has a clutch abuse protection system that alerts the driver and restricts functionality when needed. Extended periods in Creep Mode, slipping the clutch (using the accelerator pedal to hold the vehicle on a hill, for example), and high clutch temperatures can activate the clutch abuse protection system. A display message notifies the operator when the protections are needed.
Notice: To hold the vehicle stationary on an uphill slope, use the service brakes, not the accelerator pedal. Using the accelerator pedal can overheat and damage the clutch. To start moving, use the accelerator pedal and release the brakes as the vehicle begins to move.
There are three clutch abuse protection levels. At each, the driver is alerted and functionality is modified; see Table..
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To avoid clutch overheating, follow these tips:
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To hold the vehicle stationary on an uphill slope, use the service brakes, not the accelerator pedal.
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To start moving on an uphill slope, use the accelerator pedal and release the brakes as the vehicle begins to move.
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When hooking up to a trailer, ensure the trailer is high enough to back under, and use first gear reverse.
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Avoid starting in higher gears, and start in first gear when a trailer is attached.
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Ensure trailer brakes have had time to completely release prior to starting.
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Do not use Creep mode for an extended period. Stop or adjust the vehicle speed when warned to deactivate Creep mode.
Table 1, Clutch Abuse Alerts and Protections
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Clutch Abuse Alerts and Protections |
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|
Alert Level |
Alert |
Protections |
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|
Highest Start Gear |
Creep Mode |
Clutch Function |
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|
1 |
Heavy clutch load message |
1 |
No restriction |
Normal function |
|
2 |
Heavy clutch load message |
1 |
Disabled |
Normal function |
|
3 |
Clutch overload message and buzzer |
1 |
Disabled |
If the accelerator pedal is depressed, the clutch closes at fixed rate. If the accelerator pedal is released, the clutch opens at fixed rate. |